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Finding the Fourth Proportional to 51.93, 71.79 and 46.47

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Solution

The fourth proportional to 51.93, 71.79 and 46.47 is: 64.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51.93 : 71.79 = 46.47 : x
  2. Step 2: Convert to fraction form
    51.93/71.79 = 46.47/x
  3. Step 3: Cross multiply
    51.93x = 71.79 × 46.47
  4. Step 4: Simplify right side
    51.93x = 3,336.08
  5. Step 5: Solve for x
    x = 3,336.08/51.93
  6. Step 6: Final answer
    x = 64.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.